I was very happy to see Constantine in the Arrow season 4 trailer. After the cancellation of the Constantine series I was worried that we might not see him again. When it was announced that Constantine (Matt Ryan) would appear in the upcoming season of Arrow fans were pleased.
Stephen Amell stars as Oliver Queen and Arrow, Katie Cassidy, David Ramsey, Willa Holland, Paul Blackthorne, Emily Bett Richards, John Barrowman, and Colton Haynes.
Season 4 of Arrow will premier on The CW on October 7th.
Take a look at the Arrow trailer.